Winston checks the estimated size of his audience before running an incrementality test. What risk is he trying to minimize?

LinkedIn Conversion Lift Testing uses a test group and a control group to measure incremental impact. A portion of the eligible audience is withheld from seeing ads, so the reachable audience becomes smaller during the test. Checking audience size helps confirm there is enough volume to support delivery and measurement. When the audience is too small, the control group can limit ad reach and weaken the test’s ability to produce reliable results.